Unsupported Ospf Components - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - IP-IPV6-IGP CONFIGURATION GUIDE 2010-10-31 Configuration Manual

JunosE 11.3.x IP, IPv6, and IGP Configuration Guide
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Router LSA—Describes link state and costs of router links to the area; flooded within
an area only
Network LSA—Originated by the designated router for every broadcast or nonbroadcast
multiaccess (NBMA) link having two or more attached routers; lists all routers attached
to the link
Interarea prefix LSA—Known as the type-3 summary LSA in OSPFv2; describes a prefix
external to the area, yet internal to the AS
Interarea router LSA—Called type 4 summary-LSAs in OSPFv2; describes a path to a
destination OSPF router (that is, an AS boundary router) that is external to the area,
yet internal to the AS
AS-external LSA—Describes a path to a prefix external to the AS
Link LSA (new for OSPFv3)—Provides the router's link-local address to all other routers
attached to the link; informs other routers attached to the link of a list of IPv6 prefixes
to associate with the link; enables the router to assert a collection of options bits in
the Network-LSA to be originated for the link
Intra-area prefix LSA (new for OSPFv3)—Associates a list of IPv6 address prefixes
with a transit network link by referencing a network LSA, or associates a list of IPv6
address prefixes with a router by referencing a router LSA
An LSA in OSPFv3 is still identified by its type, link-state ID, and the advertising router ID.
However, the link-state ID (for all LSA types) no longer carries IP address information.
Instead, the LSA carries either an arbitrarily assigned number or an interface ID.
The link-state ID always has a fixed length of 4 bytes. The LS type field is extended to 16
bits and encodes LSA flooding scope and specific actions to take when the router
encounters unrecognized LS types.
An IPv6 address, if it is specified in an LSA, is represented by its prefix length, prefix
options, and prefix address.

Unsupported OSPF Components

This release does not support the following OSPF components when implementing OSPF
for IPv6:
Virtual link
Not-so-stubby-area (NSSA)
Nonbroadcast multiaccess (NBMA)
Remote neighbor
Traffic engineering extensions
SNMP traps
Features specified in "OSPF as the PE/CE Protocol in BGP/MPLS IP VPNs"
(draft-ietf-l3vpn-ospf-2547)
Copyright © 2010, Juniper Networks, Inc.